Pia Guerra is a Canadian comic book artist best known for her work as penciller and co-creator of DC/Vertigo's Y - The Last Man with writer Brian K. Vaughan. She has won several awards including a Spike TV Scream Award, a Shuster, a Harvey and along with Brian and inker Jose Marzan Jr. two of the comic industry's top prize, the Eisner.

She has been nominated for numerous other awards including the Hugo Award and Prix Du Scenario from the Angoulême International Comics Festival.

She has also drawn stories for Doctor Who, Torchwood Magazine, Comic Book Tattoo, Simpson's Treehouse of Horror Comics, Spider-Man Unlimited, illustrated for White Wolf gaming manuals, produced storyboards for commercials and worked as a production designer on a sci-fi television pilot.

Pia currently lives in Vancouver BC, and is married to the very talented writer Ian Boothby. They have two cats.